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  <title>获取所有配置选项</title>
 </head>
 <body class="docs"><div id="layout">
  <div id="layout-content"><div id="function.ini-get-all" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">ini_get_all</h1>
  <p class="verinfo">(PHP 4 &gt;= 4.2.0, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">ini_get_all</span> &mdash; <span class="dc-title">获取所有配置选项</span></p>

 </div>
 
 <div class="refsect1 description" id="refsect1-function.ini-get-all-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="methodname"><strong>ini_get_all</strong></span>
    ([ <span class="methodparam"><span class="type">string</span> <code class="parameter">$extension</code></span>
   [, <span class="methodparam"><span class="type">bool</span> <code class="parameter">$details</code><span class="initializer"> = true</span></span>
  ]] ) : <span class="type">array</span></div>

  <p class="para rdfs-comment">
   获取所有已注册的配置选项
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-function.ini-get-all-parameters">
  <h3 class="title">参数</h3>
  <p class="para">
   <dl>

    
     <dt>
<code class="parameter">extension</code></dt>

     <dd>

      <p class="para">
       可选的扩展名称。如果设置了，此函数仅仅返回指定该扩展的选项。
      </p>
     </dd>

    
    
     <dt>
<code class="parameter">details</code></dt>

     <dd>

      <p class="para">
       获取详细设置或者仅仅是每个设置的当前值。 默认是 <strong><code>TRUE</code></strong>（获取详细信息）。
      </p>
     </dd>

    
   </dl>

  </p>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-function.ini-get-all-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   返回一个关联数组，指令名称是数组的键。
  </p>
  <p class="para">
   当 <code class="parameter">details</code> 为 <strong><code>TRUE</code></strong>（默认），数组会包含 <em>global_value</em>（<var class="filename">php.ini</var> 中的设置）、<em>local_value</em>（可能是 <span class="function"><a href="ini_set.html" class="function">ini_set()</a></span> 或 <var class="filename">.htaccess</var> 中的设置） 以及 <em>access</em>（访问级别）。
  </p>
  <p class="para">
   当 <code class="parameter">details</code> 为 <strong><code>FALSE</code></strong>，这个值会是选项的当前值。
  </p>
  <p class="para">
   参见<a href="configuration.changes.modes.html" class="link">手册章节</a>中访问级别含义的信息。
  </p>
  <blockquote class="note"><p><strong class="note">Note</strong>: 
   <p class="para">
    指令可以有多个访问级别，这也是为什么 <em>access</em> 会显示适当的位掩码。
   </p>
  </p></blockquote>
 </div>

 
 <div class="refsect1 notes" id="refsect1-function.ini-get-all-notes">
  <h3 class="title">注释</h3>
  <blockquote class="note"><p><strong class="note">Note</strong>: 
   <p class="para">
    <span class="function"><strong>ini_get_all()</strong></span> 忽略 &quot;array&quot; 的 ini 选项，例如
    pdo.dsn.*。
   </p>
  </p></blockquote>
 </div>


 <div class="refsect1 changelog" id="refsect1-function.ini-get-all-changelog">
  <h3 class="title">更新日志</h3>
  <p class="para">
   <table class="doctable informaltable">
    
     <thead>
      <tr>
       <th>版本</th>
       <th>说明</th>
      </tr>

     </thead>

     <tbody class="tbody">
      <tr>
       <td>5.3.0</td>
       <td>
        增加参数 <code class="parameter">details</code>。
       </td>
      </tr>

     </tbody>
    
   </table>

  </p>
 </div>


 <div class="refsect1 examples" id="refsect1-function.ini-get-all-examples">
  <h3 class="title">范例</h3>
  <p class="para">
   <div class="example" id="example-512">
    <p><strong>Example #1 <span class="function"><strong>ini_get_all()</strong></span> 例子</strong></p>
    <div class="example-contents">
<div class="phpcode"><pre><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br />print_r</span><span style="color: #007700">(</span><span style="color: #0000BB">ini_get_all</span><span style="color: #007700">(</span><span style="color: #DD0000">"pcre"</span><span style="color: #007700">));<br /></span><span style="color: #0000BB">print_r</span><span style="color: #007700">(</span><span style="color: #0000BB">ini_get_all</span><span style="color: #007700">());<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</pre></div>
    </div>

    <div class="example-contents"><p>以上例程的输出类似于：</p></div>
    <div class="example-contents screen">
<div class="cdata"><pre>
Array
(
    [pcre.backtrack_limit] =&gt; Array
        (
            [global_value] =&gt; 100000
            [local_value] =&gt; 100000
            [access] =&gt; 7
        )

    [pcre.recursion_limit] =&gt; Array
        (
            [global_value] =&gt; 100000
            [local_value] =&gt; 100000
            [access] =&gt; 7
        )

)
Array
(
    [allow_call_time_pass_reference] =&gt; Array
        (
            [global_value] =&gt; 0
            [local_value] =&gt; 0
            [access] =&gt; 6
        )

    [allow_url_fopen] =&gt; Array
        (
            [global_value] =&gt; 1
            [local_value] =&gt; 1
            [access] =&gt; 4
        )

    ...

)
</pre></div>
    </div>
   </div>
   <div class="example" id="example-513">
    <p><strong>Example #2 禁用 <code class="parameter">details</code></strong></p>
    <div class="example-contents">
<div class="phpcode"><pre><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br />print_r</span><span style="color: #007700">(</span><span style="color: #0000BB">ini_get_all</span><span style="color: #007700">(</span><span style="color: #DD0000">"pcre"</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">false</span><span style="color: #007700">));&nbsp;</span><span style="color: #FF8000">//&nbsp;Added&nbsp;in&nbsp;PHP&nbsp;5.3.0<br /></span><span style="color: #0000BB">print_r</span><span style="color: #007700">(</span><span style="color: #0000BB">ini_get_all</span><span style="color: #007700">(</span><span style="color: #0000BB">null</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">false</span><span style="color: #007700">));&nbsp;</span><span style="color: #FF8000">//&nbsp;Added&nbsp;in&nbsp;PHP&nbsp;5.3.0<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</pre></div>
    </div>

    <div class="example-contents"><p>以上例程的输出类似于：</p></div>
    <div class="example-contents screen">
<div class="cdata"><pre>
Array
(
    [pcre.backtrack_limit] =&gt; 100000
    [pcre.recursion_limit] =&gt; 100000
)
Array
(
    [allow_call_time_pass_reference] =&gt; 0
    [allow_url_fopen] =&gt; 1
    ...
)
</pre></div>
    </div>
   </div>
  </p>
 </div>


 <div class="refsect1 seealso" id="refsect1-function.ini-get-all-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><a href="configuration.changes.html" class="xref">怎样修改配置设定</a></li>
    <li class="member"><span class="function"><a href="ini_get.html" class="function" rel="rdfs-seeAlso">ini_get()</a> - 获取一个配置选项的值</span></li>
    <li class="member"><span class="function"><a href="ini_restore.html" class="function" rel="rdfs-seeAlso">ini_restore()</a> - 恢复配置选项的值</span></li>
    <li class="member"><span class="function"><a href="ini_set.html" class="function" rel="rdfs-seeAlso">ini_set()</a> - 为一个配置选项设置值</span></li>
    <li class="member"><span class="function"><a href="get_loaded_extensions.html" class="function" rel="rdfs-seeAlso">get_loaded_extensions()</a> - 返回所有编译并加载模块名的 array</span></li>
    <li class="member"><span class="function"><a href="phpinfo.html" class="function" rel="rdfs-seeAlso">phpinfo()</a> - 输出关于 PHP 配置的信息</span></li>
    <li class="member"><span class="methodname"><a href="reflectionextension.getinientries.html" class="methodname" rel="rdfs-seeAlso">ReflectionExtension::getINIEntries()</a> - 获取ini配置</span></li>
   </ul>
  </p>
 </div>


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